Multiple contact for electrical condensers.



150.8316132. PATENTBD CCT. 9, 1906. -J. F, SKTRROW. MULTIPLE CONTACT FCR ELECTRICAL CCNDENSERS. APPLIcATmN ULEB MAR.14,1905.

2 SHEETS-SHEET 1.

No. 832,632. PATENTED C0119, 190C,

' J. F. SKIRRCW. MULTlPLE CONTACT PCR ELECTRICAL CCNDENSERS.

APPLICATION FILED MAR.14, 1905.

2 SHEETS-SHEET 2.

)x1/illnesses SWW VOZ' To all when itmdy concern.;

UNITED STATES PATENT, OFFICE.

JOHN F. sKrR'RoW, oF EAs'roRANGE, NEW JERSEY- MULTmu-z vcourrier Fon ELEGTRICAL coNDENslr-i's.

Beit known that I, JOHN F. Sxmnowi citizen of'theUited States, residing at East .Ox-ange, county `of Essex, and State of New Jersey, have invented certain new and useful Improvements in Multiple Contacts for Electrical Condensers, of which the following is a s ecitication, reference being had therein to t e accompanying drawings, in which- Figure 1 is a perspective view of a condenser complete" Fig. 2, a transverse seetional view. of the condenser-case, showing the multiple contact in position therein; Fig. 3, a plan or 'view of the block of insulation on which t e contacts are mounted; Fig. lan view of the apparatus, showing the 4 a .con user-plates in. am' F' 5 a' vertical sectional view on e linh-Vl oi F'cr., 4

6, a similar view on the'lineVI of` 4; Fig.'7, a detail face -of the dial and pointer used to indicate the4 position of the movable contact-bars, and Fig. 8 a diagrammatic view of the device adapted for use in a resistance-box.

One-of the man objects of this invention is to rovide a m tiple-contact by meansof i whic when used in a condenser the linemay be connected to the groups of inductive sheets or plates progressively oneafter theother in omer that as 'many of said sheets .in the condensarfas indy be desired may be charged. 0f course it will be understood that the device inay be applied to a resistance-boxin such a manner that the resistance may be cut out or cut in the circuit.

Another object of the invention is to pro-i vide rotating means for controlling and moving the contact-hars and tov rovide a dial and pointer in connection'wit said rotating means by means of which the exact position of the movable contacts may be indicated.

Referring to the various parts by numerals, 1 vdesignates the condenser-case, and 2 the Vfront 'piece or face-plate thereof. The condenser-case contains superposed sheets .'of conducti v and dielectric material arranged in the usua manner incondensers and as indicated in,diagram in Fig. 4. Onthe innerside. of thisront piece is secured alo block- 3 of insulation. As shown in F 2I this block ex' tends entirely acrossthe interior 4of the casing and is formed with a longitudinal boss or e argement 4. In this enlargement midway its ends is formed a broad verticalchannel 5, and in the vertical face of itton each side of 4the channel 5 are formed parallel vertical `Specication of Lettera Patent. n

ippnmin mea umh 14,1905. semi s. 250.125. I

Plate 2 andthe Pamesa ose. e, 190e.

narrow Agrooves 6. In each of these grooves is mounted a finger 7, one of whose ends curves mward toward the face-plate 2 toform a'contact-point. These fingers are se- 6o cured in position by means of screws 81. 'By reference to Fig. 2 it will be noted that the contact-fingers on the 'right-hand side of the channel 5. extend Vslightly above the enlarged central part 4 of the block 3 and are adapted 65 to be engaged by an upper contact-bar while fr -on the other'orleft-hand side of the Arllannel 5 the free ends' offthe fingers extend downr 4ward and are adaptedto bengxed 'b'y a Alower contact-bar, as ,hereinafter 7o The lowerends of one set of thesel fingers and ,the .upper eiidsof the other, set of fingers are connectedbygviresjgtoone s'et ofplates 9 of' the condenser, V es shown in Fig. thelother set of platesf9 of the' ing con- 75 DeCtedtl-l'ough .1.0 and 150.89103@ @he groun f The ends of the 'contact-fingers, whi'eh'are electrically connected tothe inductive lplates of the condenser, .8-10 aiternate y up-- 8o ward and downward, as shown in Figs. 5 and 6' and between these endsmre laid the ixisulating strips o1*v @lids 11, the, endsof'these l strips or cords tothe suprting-blotk- Extending ,ughthe fm1` 8s ofthe'suppo -block' Bisashaft 12,'0nt end ofw chinvthe channels 5 ism'ounted a gear-wheel 13,

which meshes; racks vl14 "-1 on 'the 1i. #lei-edges 0 t 11 QslffU-,COD- 9 'emga 15. Theslbaigfw wat .mdslilde ont up r-an ower aoes,1respective y, o@ the enlp.e nt 4.0i tlieElPPOrting-block and are retained in position inrnesh with the gearl 13 bibmeans of retmining-clips;4 16, se- 95 cured to t supporting-block 3 and extending' over and on the inner side .ofthe rackbars 15.- The upper land loweredges of the upper and lower contact-bars,' espectively, are ooved to receive the guide-bars' 17, roo whic are'i-igildly supportedfonthe enlar ement 4, as s owninFig. 2. .These guiebars serve vto retain the bar-contacts in position on the enlargement fi and guide them in their movement. The free. ends of the in- :o5 gers 7 extend into-thepath of these 'contactars so that when said bars are moved vfortheivl' contact Iwith the ends of .the iingers', 'as s own in i 5 the engaging end of the bar being reuna l 15l in Fig. 4, in order that die said bar-willv not bind on the fingers. ,-1

d slighiliv, as shownat lno' l Y thereby very gradiiallyi-,iit outetliei'resistance.

Y. and to the retaining-clips 16.

l he adapted for use in various electrical np- -taneously moved to progressively engage the I claim as new, vand desire to-1securc hy Let- As shown in-Fig. 2, the upper contact-bar `support, two series of contact-fingers carried I is slightly in advance of the lower har-that by said support, a slidable contact-har for is, it is nearer the first contact-finger of the each series ol' (xintaet-iii'gers, arotatahle device for simultaneously operating said liars series. The result of this is that when the gear 13 is rotated in'the proper direction the upper contact-bar will engage the first linger 7 of the u ward-extending series before the lowerbar liasengaged the first finger of their: downward-extending series. These hars are so arranged that the lingers' will be engaged;

lto cause them to progressively lengage the coi-itaet-lingers, and means carried hy the rotatable device to indicate the positions of the contact-liars.

3.' A iiiiiltiple-eontiict device coii'iprising a block ol insulatinpr material l'ornied with a one at a time, alternating in the upper and@ vseries ol' narrow grooves or channels in its lower series.

face, ascries of contaet-lingers arranged in The `contact-hars are electrically ci'innecte'd5 said'groovesLa slidahle contact-har arrangeo to the postV l8by means of wires 19, whichl connect said post to the shaft of lthe gear 13 `-On the outer side of the face-plate 2 concentric with'the shaft 12'is secured the dialplate 20, which is provided with suitable graduations or indications to indicate the positionsof the reciproeable contact-bars. 0n

on said insulating-hli'ick means fiir supporting and 7guidingy said contact-liar, said liars" being l'oriiied -wiih gear-rack on their edge, a pinion in engagement Owith said rack, a rotatable device "conneeted to said pinionI means to electrically connect the line-wire to the slidable contact.

4'. A iniiltiple-con'taet dev ice coinprisiiifil a the outer end of the shaft'1'2 is rigidlyselili'ick ol' insulating; material with two series cured afknoh 21, which carries a pointer 22, which isvada ted' to he moved around the dial. It will fe-ieadily seeirthathy'rotating the knol) 21 the contact-hars will be simulcontact points` or lingers. 1t will lie noted (if-parallel grooves or channels in its l`zi.ce,' a series ol' contact-lingers in sii'id grooves, one set Vof iingdrs proji'ietin;l on one side ol' the liloek, and tlie other projecting on the other side; ii. slide-lilo.contact-liar for each series ol eoiitactlingers,-'means for supporting and that by .this means the line may he connected" giiidiiigisiid liars on the insulating-lil'ock, a

to any number of induction-plates iii-tifo eon' denser yfrom oneI groupto the entire -niiinlier of plates used; f v

In Fig. Sthe device is arranged for use in ii. resistance-box. ln. this iigure'dnly the ends necessaryto show the device 'nr-greater 'de- Vslice pinioiiiiiiiiiited'on siiidliloek and lietwi-,en

the series of contact-lingers, said` pinion lieing.ii.'rraiiged to engage liotli of the contactblocks means conneeted to said pinion and adapted to 'rotate it, niei'r'ns to (electrically of the" lingers are shownr which are electric- `connectthe'ljiii'wire to liotli coiitact-hars. ally connected to the nisistinice, itlieiiigfun#4 2. 5. condenser comprising siiperposed 's' il'iuiiidiictiniir material, a siiitalile eas- .tail. It will he readily understood. that the' Ting-therefor, a lilock' ol' insulating material reciprocahle contacts may in :moved to pro:

secured witliiiifsiiid easing, and l'oi'iiied with gressively engage the contnet-pointsfand to two seriesolpariillel groovesorcliaiinelsI conlt ,will ol' course he understood that. when the contacts are retiimed't'o their nornial positions the resistance will lie gradually ciit in the circuiti i l V i [twill of course-lie understood that the deh'iir being adapted to engage all of sind set of vice will lieput up inviirioiis foriiis and niay..

p aiiatus, and Ltlierel'ore de iiot wish to he Isaid lingers, ini-.ans for supporting-and giiidl ing said liiirs,eaeli of said liars lieing'fornied ,with a gear-rack onA 'one edge, a pinion loiiiited tothe use ofthe device in connection vcated Iii-.tween 'the two series of contact-linwith a condenser.-

llavingthus described-my invention, what 1. A ini-litiple-contactdevice comprising a lilock ol'insulatinginatcrial f oifniedwitli a series ofy parallel groovesor channels, contactliii arranged vin y said,.'chaifinels, ya .slidulile contact-liar inou'n'ted o n.'\ siiidA liloek.v andi sides of acenlte'rfareciprocalileloIgbar-con-l tact-Por each series of contacts aigear-i'ackadapted to 'progressively engage tliecontaettlie pinion and -ineans 'to' indicate the positions .,ol'tlie contact-liars.'

6. A"ini'ill."iple ei'intaet coiiiprising two 'series -ol' eontai'zt-poiiitsarranged onopposite saidfracks, whereby when the-gear is rotated 'the liarswill be moveclin opposite directions and caused. to engage on'e or inoreof theeontact-points. all '1 f li 1o support, a sel'ies of contact-fingers arranged 7. A multiple contact comprising two se# barI and means carried by said rotatable der ies of contact-points, a reciprocable contactbar for each'line of points, one of saidbars being slightljr in advance of the other, and a rotating deviceadapted to move both bars, whereby anynumber of the points may be connected to the bars.

8. 4A multiple-,contact device comprising a lblock, a series` of contact-fingersV arranged thereon, insulating material being arranged between and separating said fingers, a s idable contact-bar mounted on said block and adapted to progressively engage the contactingers, a rotatable device for moving said bar, and meanscarried by said rotating den lice to indicate the position of the contact- 9. A multiple-contact device comprising a on said support, acontact device adapte' to be brought progressively into contact with an increasing number of said contact-fingers,

, aA rotatable device for moving said contectvice to indicate the position of said bar.

1 0. A condenser comprising a pile com'- prising two sets of sheets of conducting material, a `casing therefor, a series of contactponts Within the casi said points being connected to one set o sheets, a movable contact-bar 'Within the casing, a rotatable device adapted to move the contact-mrJ means whereby said rotatable device will indicate the position of the contact-bar and two binding-posts on the outer side of said casing, one of4 said posts being electrically conneeted'tov the contact-bar, and the other being electrically connected to the other set of sheets. f

In testimon whereof I hereunto' affix my signature, in t .e presence of two Witnesses-y this 8th day of March, 1905.

` JOHN F. SKIRROWV.

Witnesses: 1

HENRjxv G. Emmons, F. A. NORMAN. 

